Singson was former President Gloria Macapagal-Arroyo's deputy national security adviser.

His son won a second term in the May 10 congressional elections.

In an exclusive interview with ABS-CBN News, the elder Singson said his son was going to see popular recording artist Usher in Macau, who recently held a concert in Manila through the help of their company, Fearless Productions.

The governor admitted that the main reason why his son decided to go abroad was due to his break-up with his showbiz girlfriend, Lovi Poe, on the night of Usher’s concert in Manila.

Singson could not give exact details of his son’s arrest. Earlier reports said Rep. Singson was apprehended with 26 grams of cocaine and 2 tablets of valium.

The arrest came as a shock to Singson. Although painful, he said he would not use any influence to help his son’s case.

He claimed that he has been strict with his children, his employees and even in his province when it comes to illegal drugs. He also alleged that he regularly sends his children to take drug tests.

Singson also denied that former President Gloria Macapagal Arroyo, now congresswoman of the 2nd district of Pampanga, will be visiting his son when she goes to Hong Kong.

Rep. Arroyo will leave the Philippines with her husband on Sunday night and skip President Benigno Aquino's first State of the Nation Address (SONA) on Monday. She will return on Wednesday. Report from Chiara Zambrano, ABS-CBN News